国人基底动脉的显微解剖学观测

ANATOMY RESEARCH(2002)

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Abstract
目的观测基底动脉的汇合部位、走行、分支及分布特点.方法采用手术显微镜、游标卡尺在国人脑标本(57例)上观测基底动脉的形态、分支和分布.结果基底动脉在桥延沟上方(成人占62.5%±2.11%)或下方(儿童占82.30%±1.92%)汇合而成.结论随着年龄增长,基底动脉的形成有逐渐上移的趋势,这有一定的实际意义,即侧位汇合时,延髓上部的血液来自基底动脉,而高位汇合时,则脑干下半的血液来自两侧椎动脉.
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